What is the AT24C256 I2C Interface EEPROM Memory Module used for?

The AT24C256 EEPROM Memory Module is commonly used for storing small amounts of data in embedded systems, especially with Arduino projects. It provides non-volatile storage, meaning the information is retained even when the power is off. This module is great for applications like data logging, configuration settings, or storing sensor readings, providing flexibility in your projects.

How does the I2C interface work with the AT24C256 module?

The AT24C256 uses the I2C (Inter-Integrated Circuit) protocol, which allows multiple devices to communicate on the same bus using only two wires, SDA for data and SCL for clock signals. This configuration simplifies wiring and enables daisy-chaining of multiple devices, making it ideal for Arduino applications where space and connections are limited.

What voltage range does the AT24C256 EEPROM operate at?

The AT24C256 operates within a voltage range of 1.7V to 5.5V, making it compatible with most microcontrollers including various Arduino boards. This broad voltage range allows for flexibility in project designs, accommodating different power source configurations. Always ensure your module is powered within this range for proper functionality.

Can the AT24C256 EEPROM store large data amounts?

Yes, the AT24C256 can store up to 32 kilobits of data, which translates to 4KB when using 8-bit bytes. While it's suitable for small to medium-sized data storage needs, for extensive databases or large files, consider breaking the data into smaller chunks or using multiple EEPROM modules in parallel for more collective storage.

Is the AT24C256 EEPROM module compatible with other microcontrollers?

Absolutely! While it's widely used with Arduino, the AT24C256 is also compatible with other microcontrollers that support the I2C protocol, such as Raspberry Pi, ESP8266, and PIC microcontrollers. This versatility makes it an essential component for various electronics projects across different platforms.

What are common applications of the AT24C256 module?

Common applications include data logging, storing configuration settings for electronic devices, and maintaining calibration data for sensors. It’s frequently used in projects that require data retention after power loss, such as weather stations, RFID readers, or any custom Arduino-based project where data persistence is crucial.

How do I connect the AT24C256 EEPROM to an Arduino?

To connect the AT24C256 to an Arduino, use the SDA and SCL pins on the Arduino and connect them to the corresponding pins on the EEPROM module. Additionally, ensure power and ground connections are made. Then, you'll use an I2C library in your Arduino code to communicate with the memory module, allowing you to read and write data effectively.

Is it necessary to use pull-up resistors with the AT24C256?

Yes, when using the I2C interface with the AT24C256, it's recommended to add pull-up resistors on the SDA and SCL lines. These resistors help ensure reliable communication by maintaining the lines at a high state. Typically, values between 4.7kΩ and 10kΩ are used, depending on the specific application and pull-up configuration.

What are the reading and writing speeds of the AT24C256?

The AT24C256 supports a maximum I2C clock frequency of up to 400 kHz, which allows for relatively fast read and write operations. While the time taken for a single byte can be as low as a few milliseconds, performance can vary based on the size of the data being written or read, as well as the number of operations performed consecutively.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

PartsNovar

AT24C256 24C256 I2C Interface EEPROM Memory Module for arduino

Support AT24C256 series chips with all pins leads out and marked for easy integration.

PartsNovar

Item #: 90385678

AT24C256 24C256 I2C Interface EEPROM Memory Module for arduino

Q: Where can I buy the AT24C256 24C256 I2C Interface EEPROM Memory Module for Arduino in India?

You can buy the AT24C256 24C256 I2C Interface EEPROM Memory Module for Arduino at Ubuy. They offer a wide range of electronic components, ensuring you can find the exact module you need for your project.

95% of respondents would recommend this to a friend

Item #: 90385678

INR 1847

Price Details

Price

INR 1847

M.R.P. INR 1847

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

^{*All items will import from US}

Availability : In stock

Imported from USA store

QTY:

Order now and get it around Thursday, November 12

Secured transaction

Our Top Logistics Partners

Support AT24C256 series chips with all pins leads out and marked for easy integration.

U-Care Warranty:

None

Select a Plan

Fast
Shipping

Free
Return^*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

Ships from Ubuy, Sold by:

Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

High Capacity

The AT24C256 offers 256Kb of memory, allowing for extensive data storage in projects, making it ideal for applications requiring substantial amounts of data retention.

I2C Compatibility

This module features a simple I2C interface, ensuring easy integration with Arduino and other microcontrollers, streamlining development processes and reducing wiring complexity.

Low Power Consumption

Designed for energy efficiency, the AT24C256 operates with minimal power, making it suitable for battery-powered devices where longevity is crucial while maintaining performance.

Product Details

Brand	PartsNovar
Manufacturer	PartsNovar
Mfr Part Number	FJGNEWicmz-00248
Item Weight	0.1 lbs (50 grams)

Who Should Buy?

Developers & Hobbyists
Ideal for developers and hobbyists building projects that require non-volatile data storage with easy integration.
Educational Purposes
Suitable for students learning about I2C communication and EEPROM storage in embedded systems.
Prototype Testing
Useful for engineers needing to prototype and test designs that rely on data retention between power cycles.

High-Speed Applications
Not suitable for applications requiring high-speed data access or real-time performance due to I2C limitations.

Product Description

AT24C256 24C256 I2C Interface EEPROM Memory Module for arduino

Have any Query? Chat with us

Customer Questions & Answers

Question: How to Shop AT24C256 24C256 I2C Interface EEPROM Memory Module Online From Ubuy?

Answer: It’s easy to shop AT24C256 24C256 I2C Interface EEPROM Memory Module online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is AT24C256 24C256 I2C Interface EEPROM Memory Module Available to Shop Online in India?

Answer: Yes, at Ubuy India this product is available for you to shop at a reasonable price. The AT24C256 24C256 I2C Interface EEPROM Memory Module is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

PartsNovar Memory Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0

1 customers ratings

5 Star

100%
4 Star

0%
3 Star

0%
2 Star

0%
1 Star

0%

Review this product

Share your thoughts with other customers

Pros

High storage capacity: 256KB
Fast I2C interface: 400 kHz
Low power consumption: 1mA max
Reliable for data retention
Easy integration with Arduino

Platform Trust & Buyer Confidence

4.3/5 1588 reviews

Read reviews

Anjan

Verified buyer

“It is really an amazing experince on importing items from US. Very simlified procedure of custom duty handling. The delivery was also done in lightning seed.”

20 September 2026 · via Trustpilot

Tom hollen

Verified buyer

“Product was of good quality.”

23 September 2026 · via Trustpilot

Justin

Verified buyer

“Very easy to use Very easy to use. Nice resolution. Ubuy got it in the assured time slot.”

06 October 2026 · via Trustpilot

Dangeti

Verified buyer

“I have ordered McLaren formula car for kids from Huffy. Ubuy actually done a great job by quality testing the car before shipping long distance over to India from USA. Ubuy has taken very good care over shipment as well. I am great fan of Ubuy and I wish them the success they deserve.”

07 October 2026 · via Trustpilot

Robbin

Verified buyer

“Highly recommended for hard-to-find items Extremely satisfied with my purchase on Ubuy. I was initially unsure about ordering from an international seller, but everything went without a hitch. All customs and shipping details were handled seamlessly with zero surprise fees at delivery. The product is 100% genuine and well-packaged. Highly recommended for rare or imported products!”

07 October 2026 · via Trustpilot

WHY SHOP WITH US

Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

INR 1847

Order now and get it around Thursday, November 12

QTY:

Secured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners

Fastest cross-border delivery

Features & Benefits

Compatible with AT24C256 series chips.
Includes a pin power supply and power indicator.
Features on-board pull-up resistor for I2C communication.
All pins are clearly marked for straightforward setup.
Direct jumper settings for address input and write-protect pin.
Compact PCB size of 36.5 mm x 12 mm for easy integration.

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns ^*, and secure packaging on every order.

AT24C256 24C256 I2C Interface EEPROM Memory Module for arduino

INR 1847

Fast Shipping

Free Return*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

What Stands Out

Product Details

Who Should Buy?

Product Description

Customer Questions & Answers

PartsNovar Memory Editorial Review

Customer Reviews & Ratings

Review this product

Pros

Platform Trust & Buyer Confidence

WHY SHOP WITH US

Product Price History

Important information

INR 1847

Features & Benefits

Ubuy Assurance

Fast
Shipping

Free
Return^*